22102021210 has 16 divisors (see below), whose sum is σ = 39798625536. Its totient is φ = 8837477968.

The previous prime is 22102021163. The next prime is 22102021217. The reversal of 22102021210 is 1212020122.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (22102021217) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 388354 + ... + 441613.

It is an arithmetic number, because the mean of its divisors is an integer number (2487414096).

Almost surely, 2^22102021210 is an apocalyptic number.

22102021210 is a deficient number, since it is larger than the sum of its proper divisors (17696604326).

22102021210 is a wasteful number, since it uses less digits than its factorization.

22102021210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 832637.

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 22102021210 its reverse (1212020122), we get a palindrome (23314041332).

The spelling of 22102021210 in words is "twenty-two billion, one hundred two million, twenty-one thousand, two hundred ten".